Filter device and transmitter-receiver utilizing beam-structured micro-resonators

Abstract

A filter device configured with a plurality of micro-resonators and having a wide specific bandwidth. The filter device is configured as having a plurality of beam-structured, micro-resonators ( 15 ), ( 16 ), ( 17 ), ( 18 ) electrically connected in a lattice-forming manner between two input terminals ( 11 ), ( 12 ) for balanced input and two output terminals ( 13 ), ( 14 ) for balanced output, each of the plurality of micro-resonators ( 15 ), ( 16 ), ( 17 ), ( 18 ) being composed of a resonator group including a plurality of resonators differed in resonance frequency.

1. A filter device comprising:
 a plurality of beam-structured, micro-resonators electrically connected in a lattice-forming manner between two input terminals for balanced input and two output terminals for balanced output, 
 wherein, 
 each of said plurality of micro-resonators is composed of a resonator group including a plurality of resonators differed in resonance frequency, and 
 said resonator group has a plurality of beam electrodes differed in beam length. 
 
   
   
     2. The filter device as claimed in  claim 1 , characterized in that said resonator group has a plurality of beam electrodes differed in beam mass. 
   
   
     3. A transmitter-receiver comprising:
 a filter device having:
 a plurality of beam-structured, micro-resonators electrically connected in a lattice-forming manner between two input terminals for balanced input and two output terminals for balanced output, 
 wherein, 
 each of said plurality of micro-resonators being composed of a resonator group including a plurality of resonators differed in resonance frequency, and said resonator group has a plurality of beam electrodes differed in beam length.